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Finding the Fourth Proportional to 79,814.50, 119,722.35 and 35,429.32

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Solution

The fourth proportional to 79,814.50, 119,722.35 and 35,429.32 is: 53,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,814.50 : 119,722.35 = 35,429.32 : x
  2. Step 2: Convert to fraction form
    79,814.50/119,722.35 = 35,429.32/x
  3. Step 3: Cross multiply
    79,814.50x = 119,722.35 × 35,429.32
  4. Step 4: Simplify right side
    79,814.50x = 4,241,681,449.30
  5. Step 5: Solve for x
    x = 4,241,681,449.30/79,814.50
  6. Step 6: Final answer
    x = 53,144.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.